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A random variable X that has pmf given by p(x) = 1/ (n+1) over the range Rx = {0,1,2,...,n} is said to have a discrete uniform distribution. Find the mean and variance of this distribution.
Fitting of simple linear equation - Prepare an equation showing how daily sales are related to number of customers per day.
The technician has just made an attempt to calibrate the machine. a. What is the probability that the machine is in adjustment?
Iit is known that signal change in this brain area is normally distributed with mean of 35 and standard deviation of 10. By using .01 level, what must researcher conclude?
Find the area under the normal distribution curve between z = 1.52 and z = 2.43.
The owner of Britten's Egg Farm wants to estimate the mean number of eggs laid per chicken. A sample of 20 chickens shows they laid an average of 22 eggs per month with a standard deviation of 2.03 eggs per month.
If new inspector measures 101 stampings with variance of 0.13 square inch, test at 0.05 level of significance whether inspector is making satisfactory measurements. Suppose normality.
Using the empirical rule what percentage of adults is 25 - 45 has iq score bet 70 and 130.
Find the minimum amount of water pumped in 30 days. Let y be the total number of gallons pumped x days after pumping being. Note that (0,0) is on graph of the equation.
Test whether there is difference in the two population mean. Use p-value approach
Use the given confidence level and sample data to find a confidence interval for estimating the population mean
A sample of twenty automobiles was taken, and the miles per gallon (MPG), horsepower, and total weight were recorded. Develop a linear regression model to predict MPG using horsepower as the only independent variable. Develop another model with weig..
In terms of p , the researcher should test which of the following null and alternative hypotheses?
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